Legal claims defining the scope of protection. Each claim is shown in both the original legal language and a plain English translation.
1. A power supply for an electronic apparatus, comprising: a switching driver configured to perform a switching operation and output an operation voltage; a first charger/discharger configured to set a timing of the switching operation; and a controller configured: in response to the electronic apparatus being in a normal mode, to control the switching driver to perform the switching operation so that the operation voltage reaches to a target voltage, and in response to the electronic apparatus being in a power saving mode, to perform a first operation for controlling the switching driver to disable the switching operation until the operation voltage decreases from the target voltage to a predefined voltage lower than the target voltage, and to perform a second operation for controlling the switching driver to perform the switching operation until the operation voltage increases from the predefined voltage to the target voltage, wherein the controller performs repeatedly the first operation and the second operation during the power saving mode.
A power supply for electronics controls voltage output in normal and power-saving modes. It uses a switching driver to convert power and output an operation voltage, and a charger/discharger circuit sets the timing of the switching. A controller manages the switching: in normal mode, it ensures the operation voltage reaches a target level. In power-saving mode, it alternates between disabling the switching until the voltage drops to a predefined level lower than the target, then enabling the switching until the voltage rises back to the target. This on-off cycle repeats during power saving to conserve energy.
2. The power supply according to claim 1 , further comprising: a second charger/discharger configured to supply power for the switching operation, wherein the controller is configured to charge the first charger/discharger and the second charger/discharger so that a voltage of the second charger/discharger can be charged to a second voltage, and to control the switching driver to perform the switching operation and output the operation voltage when the voltage of the second charger/discharger is charged to the second voltage.
The power supply described in Claim 1 also includes a second charger/discharger that provides power for the switching driver's operation. The controller charges both the first and second charger/dischargers. The second charger/discharger's voltage is charged to a second voltage level. The controller only allows the switching driver to operate and output the operation voltage when the second charger/discharger reaches this second voltage level. This ensures sufficient power is available for the switching process. The cycling on/off during power save mode will control the first charger/discharger as described in Claim 1.
3. The power supply according to claim 2 , wherein the controller is configured to control the switching operation to be disabled when the output operation voltage reaches a third voltage.
The power supply as described in Claim 2 also has a mechanism to disable the switching when the output operation voltage reaches a third voltage level. The controller monitors the output voltage, and if it exceeds this third voltage, the controller will turn off the switching driver. This provides over-voltage protection and prevents damage to the connected electronic device. This third voltage is likely higher than the normal "target voltage" mentioned previously.
4. The power supply according to claim 2 , further comprising: an auxiliary power supply configured to charge the first charger/discharger and the second charger/discharger, wherein the controller is configured to control the auxiliary power supply to supply an auxiliary voltage to the first charger/discharger and the second charger/discharger from a time when a charging voltage of the first charger/discharger is discharged to the predefined voltage to a time when the auxiliary voltage of the second charger/discharger is charged to the second voltage.
The power supply from Claim 2 incorporates an auxiliary power supply to charge the first and second charger/dischargers. The controller manages this auxiliary supply, providing power to the chargers specifically during the power-saving mode cycle. It supplies auxiliary voltage from the moment the first charger/discharger's voltage drops to the predefined lower level (mentioned in Claim 1) until the second charger/discharger is charged up to its required second voltage level (mentioned in Claim 2). This ensures the system can efficiently resume switching after the voltage dip in power saving mode.
5. The power supply according to claim 3 , further comprising: a feedbacker configured to feed back the operation voltage for the switching operation, wherein the controller is configured to control the feedbacker to disable the feed back of the operation voltage when the switching operation is disabled.
The power supply of Claim 3 includes a feedback mechanism that monitors the output operation voltage. This "feedbacker" sends voltage information to the controller, which uses it to regulate the switching operation. Crucially, when the controller disables the switching (either in power-saving mode as per Claim 1, or when the third voltage is reached as per Claim 3), it also disables this feedback loop. This prevents the feedback circuit from interfering with the disabled state of the switching driver.
6. The power supply according to claim 3 , further comprising: a mode selector configured to receive a signal for selecting a mode to disable the switching operation, wherein the controller is configured to determine whether to disable the switching operation in accordance with the signal received by the mode selector.
A power supply system includes a controller that regulates output voltage by controlling switching operations of a power conversion circuit. The system also includes a mode selector that receives an external signal to enable or disable the switching operation. When the mode selector receives a signal indicating a disable mode, the controller halts the switching operation, effectively converting the power supply into a linear regulator mode. This allows the system to operate in a low-noise or low-efficiency mode when switching noise is undesirable, such as in sensitive electronic applications. The controller monitors the mode selector signal and adjusts the power conversion circuit accordingly, ensuring stable output voltage regardless of the selected mode. The power conversion circuit may include a transformer or other components for voltage conversion, and the controller dynamically adjusts duty cycles or other parameters to maintain regulation. The mode selector provides flexibility in power supply operation, allowing users to switch between high-efficiency switching mode and low-noise linear mode based on application requirements. This design is particularly useful in systems where noise reduction is critical, such as audio equipment or medical devices, while still maintaining efficiency when switching mode is preferred.
7. A method of controlling a power supply for an electronic apparatus that comprises a switching driver for supplying an operation voltage, the method comprising: controlling the switching driver to perform a switching operation and output the operation voltage; in response to the electronic apparatus being in a normal mode, controlling the switching driver to perform the switching operation so that the operation voltage reaches to a target voltage; and in response to the electronic apparatus being in a power saving mode, performing a first operation for controlling the switching driver to disable the switching operation until the operation voltage decreases from the target voltage to a predefined voltage lower than the target voltage, and performing a second operation for controlling the switching driver to perform the switching operation until the operation voltage increases from the predefined voltage to the target voltage, wherein the method comprises performing repeatedly the first operation and the second operation during the power saving mode.
A method for controlling a power supply in an electronic device. The method controls a switching driver to output an operation voltage. In normal mode, the switching driver operates to maintain the voltage at a target level. In power-saving mode, the process alternates: first, the switching is disabled until the voltage drops to a predefined level below the target. Second, the switching is enabled until the voltage rises back to the target. This on-off cycle repeats to save power.
8. The method according to claim 7 , further comprising: performing the switching operation when a voltage of a second charger/discharger for supplying power for the switching operation is charged to a second voltage.
The power supply control method as described in Claim 7 also incorporates checks to ensure adequate power is available before switching. Specifically, the switching driver only operates when the voltage of a second charger/discharger (which provides power for the switching driver) reaches a specific voltage level.
9. The method according to claim 7 , further comprising: disabling the switching operation when the operation voltage reaches a third voltage.
The power supply control method described in Claim 7 also protects against over-voltage conditions. The switching operation is disabled if the output operation voltage rises to a third, predefined voltage level. This is in addition to the normal power-saving cycle described in Claim 7.
10. The method according to claim 8 , further comprising: supplying auxiliary power to the second charger/discharger from a time when a charging voltage of the first charger/discharger is discharged to the predefined voltage to a time when the auxiliary voltage of the second charger/discharger is charged to the second voltage.
The power supply control method in Claim 8 also uses an auxiliary power supply to charge the second charger/discharger. Auxiliary power is supplied to the second charger/discharger during a specific period in the power-saving cycle: from the time the first charger/discharger voltage drops to its predefined low level (Claim 7), until the second charger/discharger voltage reaches its required voltage (Claim 8).
11. The method according to claim 9 , further comprising: feeding back the operation voltage for the switching operation; and disabling the feeding back of the operation voltage when the switching operation is disabled.
The power supply control method outlined in Claim 9 monitors the output voltage via a feedback mechanism. When the switching operation is disabled (either due to the over-voltage protection of Claim 9 or in power-saving mode as in Claim 7), the feedback of the operation voltage is also disabled.
12. The method according to claim 7 , further comprising: receiving a signal for selecting a mode to disable the switching operation; and determining whether to disable the switching operation in accordance with the received signal.
The power supply control method from Claim 7 allows for external control over disabling the switching. A signal is received that selects a mode to disable switching. Whether switching is disabled is determined based on the received signal, allowing an external component to force the power supply into a low-power or off state.
13. A display apparatus comprising: an image processor configured to process an image signal; a display configured to display an image based on the image signal; a first controller configured to control the display of the image; and a power supply configured to supply an operation voltage to the first controller, the power supply comprising: a switching driver configured to perform a switching operation and output an operation voltage; a first charger/discharger configured to set timing of the switching operation; and a second controller configured: in response to the display apparatus being in a normal mode, to control the switching driver to perform the switching operation so that the operation voltage reaches to a target voltage, and in response to the display apparatus being in a power saving mode, to perform a first operation for controlling the switching driver to disable the switching operation until the operation voltage decreases from the target voltage to a predefined voltage lower than the target voltage, and to perform a second operation for controlling the switching driver to perform the switching operation until the operation voltage increases from the predefined voltage to the target voltage, wherein the second controller performs repeatedly the first operation and the second operation during the power saving mode.
A display device contains an image processor, a display, a first controller, and a power supply. The power supply provides power to the first controller and includes a switching driver, a first charger/discharger, and a second controller. In normal mode, the second controller operates the switching driver to maintain the output voltage at a target level. In power-saving mode, it cycles: first, disables the switching until the voltage drops to a lower predefined level. Second, enables the switching until the voltage rises back to the target level. This on-off cycle repeats to save power.
14. The display apparatus according to claim 13 , further comprising: a second charger/discharger configured to supply power for the switching operation, wherein the second controller is configured to charge the first charger/discharger and the second charger/discharger so that a voltage of the second charger/discharger can be charged to a second voltage, and to control the switching driver to perform the switching operation and output the operation voltage when the voltage of the second charger/discharger is charged to the second voltage and to disable the switching operation when the output operation voltage is boosted to a third voltage.
The display apparatus from Claim 13 further includes a second charger/discharger that powers the switching driver. The second controller charges both charger/dischargers, and only starts the switching operation when the second charger/discharger reaches a specified voltage. Furthermore, to prevent damage, the switching operation is disabled when the output voltage reaches a third, higher voltage. This combines voltage regulation and over-voltage protection.
15. The display apparatus according to claim 14 , further comprising: an auxiliary power supply configured to charge the first charger/discharger and the second charger/discharger, wherein the second controller is configured to control the auxiliary power supply to supply an auxiliary voltage to the first charger/discharger and the second charger/discharger from a time when a charging voltage of the first charger/discharger is discharged to the predefined voltage to a time when the auxiliary voltage of the second charger/discharger is charged to the second voltage.
The display apparatus power supply from Claim 14 incorporates an auxiliary power supply to charge the charger/dischargers. The second controller activates the auxiliary supply from the moment the first charger/discharger's voltage drops to the predefined low level (during the power-saving cycle, as per Claim 13) until the second charger/discharger reaches its required voltage. This ensures efficient recharging and consistent operation during power saving.
16. The display apparatus according to claim 13 , further comprising: a feedbacker configured to feed back the operation voltage for the switching operation, wherein the second controller is configured to control the feedbacker to disable the feed back of the operation voltage when the switching operation is disabled.
The display apparatus from Claim 13 incorporates a feedback mechanism that monitors the power supply's output voltage. The second controller disables this feedback loop whenever the switching operation is disabled (either due to the power-saving cycle described in Claim 13, or the overvoltage protection described in other claims), preventing interference.
17. A method of controlling a display apparatus which comprises a switching driver for supplying an operation voltage and processes an image signal to display an image, the method comprising: controlling the switching driver to perform a switching operation and output the operation voltage; in response to the display apparatus being in a normal mode, controlling the switching driver to perform the switching operation so that the operation voltage reaches to a target voltage; and in response to the display apparatus being in a power saving mode, performing a first operation for controlling the switching driver to disable the switching operation until the operation voltage decreases from the target voltage to a predefined voltage lower than the target voltage, and performing a second operation for controlling the switching driver to perform the switching operation until the operation voltage increases from the predefined voltage to the target voltage, wherein the method comprises performing repeatedly the first operation and the second operation during the power saving mode.
A method for controlling a display apparatus that uses a switching driver for supplying an operation voltage. The method involves controlling the switching driver to output the voltage. In normal mode, the switching driver operates to keep the voltage at a target level. In power-saving mode, the process alternates: the switching is disabled until the voltage drops to a lower level, then the switching is enabled until the voltage rises back to the target. This on-off cycle repeats to conserve energy.
18. The method according to claim 17 , further comprising: performing the switching operation when a voltage of a second charger/discharger for supplying power for the switching operation is charged to a second voltage; and disabling the switching operation when the operation voltage reaches a third voltage.
The display apparatus control method as described in Claim 17 incorporates power source checks and over-voltage protection. Switching only occurs when a second charger/discharger (that provides power for the switching) reaches a specific voltage. Additionally, the switching operation is disabled if the operation voltage reaches a third voltage level.
19. The method according to claim 18 , further comprising: supplying auxiliary power to the second charger/discharger from a time when a charging voltage of the first charger/discharger is discharged to the predefined voltage to a time when the auxiliary voltage of the second charger/discharger is charged to the second voltage.
The display apparatus method of Claim 18 utilizes an auxiliary power supply. Auxiliary power is delivered to the second charger/discharger during a specific period of the power-saving cycle: from the moment the first charger/discharger's voltage drops to its predefined low level, until the second charger/discharger reaches its required voltage.
20. The method according to claim 17 , further comprising: feeding back the operation voltage for the switching operation; and disabling the feed back of the operation voltage if the switching operation is disabled.
The display apparatus control method of Claim 17 involves monitoring the output voltage via a feedback mechanism. If the switching operation is disabled (for any reason, such as power-saving mode), the feedback mechanism is also disabled.
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October 3, 2017
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